What are my best options?

First, I am a newbie. I have an idea for website. I would like input for the best way to accomplish it. A brief description of what it will do. It will be for couponing and shopping. It will help users create grocery lists and cross reference sales and coupons available for items on their list. Once a list is created, it will sort it by aisle order. Track sales cycles for grocery items. It will contain (in my opinion a large amount of data) and will be web based. I have started playing around with it using PHP and MYSQL. I have discovered that PHP by itself will not give me the interface that I want. I have been told that for the type of dependant select boxes I want to use, Ajax and/or JQuery would be necessary. I dont mind putting in the effort to learn what I need to, but dont want to learn something that will not meet my needs. If this gives you enough information, please give your opinion. If you need more information to form an opinion, please ask. I just checked and the local community college does not offer php classes.
Thanks.

First, I am a newbie. I have an idea for website. I would like input for the best way to accomplish it. A brief description of what it will do. It will be for couponing and shopping. It will help users create grocery lists and cross reference sales and coupons available for items on their list. Once a list is created, it will sort it by aisle order. Track sales cycles for grocery items. It will contain (in my opinion a large amount of data) and will be web based. I have started playing around with it using PHP and MYSQL. I have discovered that PHP by itself will not give me the interface that I want. I have been told that for the type of dependant select boxes I want to use, Ajax and/or JQuery would be necessary. I dont mind putting in the effort to learn what I need to, but dont want to learn something that will not meet my needs. If this gives you enough information, please give your opinion. If you need more information to form an opinion, please ask. I just checked and the local community college does not offer php classes.
Thanks.